Improvement in rotary engines



/2 SheeMy/ud M (/[2 51M Cahk/e Rainy Engine PATEMEB JUL 18 1871 UNITEDTATE$ JAMES M. GONKLE, OF BEAVER FALLS, PENNSYLVANIA.

IMPROVEMENT IN ROTARY ENGINES.

Toall whom it may concern:

Be it known that I, J AAIES M. OONKLE, of Beaver Falls, in the county ofBeaver and in the State of Pennsylvania, have invented certain new anduseful Improvements in Rotary-Engine; and do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawing and to the letters of referencemarked thereon making a part of this specification.

The nature of my invention consists in the construction and arrangementof a rotary-engine, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed of one of thevalves.

A represents a cylinder of any suitable dimensions, within which thepiston B rotates, this piston being constructed, as shown in Fig; 1,with two driving points. In the inside of the cylinder A, at equaldistances apart, are set four valves, C 0, extending the entire lengthof the cylinder, and constructed, as shown in Fig. 7, with a recess onthe under or inner side of each, soas to catch air or exhaust steam incl'osing, thereby preventing noise or rattle. The side or portion uponwhich each valve turns is rounded and inserted in a rounded groove inthe cylinder against a follower, a, the press Of which against the valveis regulated by setscrews I), thus regulating the friction. Each head tothe cylinder A is composed of an outer part, D, a middle part, E, and aninner part, G, all of which, together with the cylinder and piston, areprovided with ports and grooves for the passage of the steam, as will bepresently described. The steam is received from the pipe below throughthe passage d in the cylinder or,shell A. This passage connects, by aport, d, through the parts G E, with a groove, 6, leading to a circulargroove, f, on the inside of the outer part D of the head. From saidgroove f containing the steam, through the parts E and G, are four holesor issues, h h, connecting with recesses Min the revolving piston orhead B, which recesses receive and cut off the steam. The steam thenpasses through openings k, grooves Z in the out side of the inner partG, and through openings m, and is let into and against the rotary pistonB bythe valves 0. After the steam acts on the piston it exhausts orescapes through the issues a in said piston extending toward the center,connecting with the small circular groove 19 011 the inside of the innerpart G, then passing through the groove 1" and opening 8 in said part Gto and through the exhaust-pipe 8. These various passages are the samein each end or each head of the cylinder, as well as in each end of thepiston.

For a large cylinder the piston may have four driving points, in whichcase six valves should be used; but I do not confine myself to anyspecific number, as they may be varied to suit circumstances.

Havingthus fully describedmy invention, what I claim as new, and desireto secure by Letters Patent,- is

1. The openings 7c m and grooves Z for conducting the steam from thecutoffs t to the rotary head or piston through the valves 0,substantially as herein set forth.

2. The passages it through the rotary piston B, circular groove 1), andpassage 1", for conducting the steam from the inside of the cylinder tothe escapepipe, substai'itially as herein set forth.

3. The piston or rotating head B, provided with recesses i and passagesa, substantially as and for the purposes herein set forth.

4. The cylinder-head, composed of the three parts D, E, and G, with thevarious passages, arranged substantially as shown and described, and forthe purposes herein set forth.

5. The combination of the valves 0, recessed as described, followers to,and set-screws 1), substantially as and for the purposes herein setforth.

6. The combination of the cylinder A, piston B, valves G, followers a,and heads D E G, all

constructed as shown and described, and provided with the variouspassages, substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this7th day of April, 1871.

Witnesses:

O. W. TAYLER, JAMES KnYs.

JAMES M. CONKLE.

